<template>
  <div>
    <h2>我是你爸爸</h2>
    <SonComponent
      v-for="item in message"
      :key="item.id"
      :message="item"
      :id='item.id'
      @age="fatherAge"
    ></SonComponent>
  </div>
</template>
 
<script>
import SonComponent from './SonComponent.vue'

export default {
  name: 'FatherComponent',

  components: {
    SonComponent
  },

  data() {
    return {
      message: [
        {
          id: '1',
          uname: 'harry',
          famliyName: 'despot',
          age: 28,
          profess: '前端'
        },
        {
          id: '2',
          uname: '志豪',
          famliyName: '陈',
          age: 17,
          profess: '测试'
        },
        {
          id: '3',
          uname: '嘉',
          famliyName: '高',
          age: 21,
          profess: '全栈'
        },
        {
          id: '4',
          uname: '涵翔',
          famliyName: '侯',
          age: 18,
          profess: '帕勒马斯'
        }
      ]
    }
  },

  methods: {
    fatherAge(id,num){
      this.message.forEach(item=>{
        if(item.id === id){ 
          item.age += num
        }
      })
    }
  }
}
</script>

<style scoped>
</style>